Boiler



J. P. PERRY.

BOILER.

APPLICATION FILED AUGZ, 1919.

Patented A11 24, 1920;

3 SHEETSSHEET I.

WITNESSE a MENTOR J. P. PERRY.

BOILER.

APPLICATION FILED AUGZ, 1919.

Patented Aug. 24, 1920.

3 SHEETS-SHEET 2.

WITNESSES ATTORNEYS J. P. PERRY.

BOILER.

APPLICATION FILED AUG. 2, 1919.

1, 350,565 Patented Aug. 24, 1920.

3 SHEETSSHEET 3.

AMES P. PERRY, or. GLENG.O.E,.NEW MEXICO. is

v 'Specification of Letters Patent. 'Patented Aug 24, 192() 3 'App1ication"fi1ed August 2, 1919. Serial 1 10'. 314,821.

To all whom it may coricern Be it known that I, JAMEs P. PERRY, a

citizen of the United States, and aresident' of Glencoe, county of Lincoln, and State of New Mexico, have invented a new and'Improved Boiler, of which the following is a full, clear, and exact description.

This invention relates to steam-plants or boilers. e 7

An object of the invention is to provide a steam boiler design which will have a great deal of heating surfaceand which will be comparatively small in size, in order-t0 provide a suitableboiler for use on ae r0 planes, automobiles and other vehicles; and which will also find a use in any capacity where it is necessary to produce steam for operation of steam engines and turbines.

An ob ect of the inventlon 1S to provide a boiler which will gain full advantage ofheat derived from combustion of fuel. The boiler is simple in'construction, accessible to repair and dependable in steam generating capacity. V V

Another object is to provide a boiler which has an outer jacket construction which may be quickly assembled and removed from the boiler shell in order to clean the boiler parts. With the above principal objects, and others, in view, the invention has relation to an arrangement of boiler parts and ele-.. ments, an example of which is described in the following specification, pointed out in the appended claims and illustrated in the accompanying drawings, wherein:

Figure 1 shows a vertical section of the boiler, and Fig. 2 shows a horizontal section as would be taken upon the line 2-'-2 of Fig. 1. w

Fig.3 is a longitudinal sectionalview of one ofthe plurality of water tubes shown inserted in the boiler shells.

Fig. 4 is a side elevation of the boiler, and Fig. 5 is a plan view thereof.

in constructing a boiler according to the plans of my invention, I employ an inner and outer boiler shell which provides an annular water space. A plurality of heating tubes are inserted through the water space and expose the water tov heat circulated through the boiler. Other novel features of the construction therewith will appear asthe description is continued.

Referring now more in particular to the:

drawings, the reference numerals 6 and 7 point out an inner and Outer boilershell.

The inner shell is closed by heads 8 and the outer shell is closed by heads 9. The boiler Y shells are spaced in concentric relation by upper and lower rings 10 which are provided with holes formed therein to permit circulation of water. In this manner a concentric water space is formed between the inner and outer boiler shells.

A water reservoir'is disposed centrally through the boiler shells. This comprises a water column or tube 11 fitted into the j upper set of heads 8 and 9 and closed by a cap 12 at the :upper end thereof, and closed by a plug 13 at the lower end thereof. The

upper portion of the water reservoir is provided with steam take-off pipes 14, and the upper portion of the water reservoir 11 may 1 be termed a steam dome employed to collect steam generated within the water space of the boiler. The steam dome or upper end of the reservoir 11 is apertured as shown at 15 to permit steam to pass from the water reservoir to the pipes 14. Apertures 16 are also provided below the water line in order to permit circulation of water through the reservoir 11 and boiler.

A perforated pipe 17 is inserted through the upper set of heads 8 and 9 of the boiler shells and provided on the upper end thereof with a safety valve 18. The lower end of the perforated' tubes is fitted with a fusible plug 19 which will melt should the boiler become dry and direct a stream of steam or water downwardly through the boiler to quench the fire and permit the boiler to cool off to prevent damage. This perforated tube 17 is shown in Fig. 1, and it will be I understood'that any type of safety valve 18 will be employed.

A plurality of water tubes 22 is carried by the concentric boiler shells approximately right-angular with the axis of the boiler and disposed radially. These boiler tubes will be constructed and assembled with the two boiler shells as shown in Fig. 3. The boiler tubes are provided with water circulation holes 23 to admit water from the annular water chamber into the tubes. The tubes terminate inwardly adjacent the water reservoir. 11, and extend outwardly from the outer boiler shell. The radial arrangement .of the boiler tubes is shown in Fig. 2, and

Fig. 1 shows the tubes arranged in vertical tiers which permits a great number of these water tubes to be inclosed withi, a small space. 7 i 7 1A boiler jacket is provided around the V system of radial water tubes and comprises a-number of jacketsectioiis2 L?v The j acket sections when assembled form a cylindricat. p,

dated in. size to form fiame nozzles. Qwater feedv and-fuel feed pipes may beinserted throi'igh water tubes if desirable.

boiler j acket. Each'sectionfis provided with a hinge bracket 25. A binder rod 26 is passed-through the hinge-bracket to hold the jacket sections together. A acket :-l 1e ad 27;; isfitted upon the upper portion of the boiler, and base 28 is provided at the bottom.

thereof; The jacket head'and base have at tached thereto rings 29 which hold the sectional jacket .in' place. The retaining rods 26 aref passed through the jacket head and, thebase and secured thereto by 'nutsor other.

appropriate means. {The retaining rods 26 function to holdthe j acketsections together and secure the; base and jacket head in spaced relation to forml a unitarystructure. The outerconcentricspace left between the boller jacket and the outer boiler shell provides an; outer heatingspace. The outer endsof the radialwater tubes therefore .are mounted Within this outer heating space. The in-- terior oftheinner boiler shell provides an" interiorheating space or fire box. The in ner-ends of the water tubes .are, confined. in thefirebox. A-number of flue tubes -30,are fitted in the boiler shells at the upper portion thereof.

in order to communicate the fireboxwith' the outer heating space. A ventilator tube 31-is fixed in the base open at the lower end '36 is controlled by a hand rod 37. The valve and normally closed at the upper. end with a plug 32. This plug 32 is held in place by a bolt 33. The plug 32 may be removed for inspecting the fire box and interior parts of the boiler. A heat outlet conduit 34 is provided underneath the boiler base and com municates with the ventilator tube 31. The ventilator tube is apert'ured as shown at 35 in order to convey the heat from the outer ,heatingspace through the ventilator tube and" into the heat" outlet conduit 34. The heat outlet '34: may be of anyappropriate length. in order to convey "smoke an'd used heat away from the boiler. A damper :val-ve may be-regulated in open or closed position to cause a fast orslow movement of heat through the fire box into the outer;heating spaceand from the boiler. It may be desirable'to employ a thermostatic ofapproved 37 are. provided with a closurev'ztlve, not shown-,'i'which will'be kept closed until such times as become necessary to open up the valves to clean the boiler of; scale and sedi-' ment- 1' I Anumber i of water feed pipes 39 are serted through the boiler construction and boiler shell forming an annular water space in..the boilerwith the inner end thereof re- The The.flameissues from the fuel pipes 40 and is spread by the plug13. The flame and heat passes fupwardly through the fire box around and through the plurality of ater i .tubes andthrough the'flues 30 into the outer heatingspace. The products of combustion are drawn from the outer heating space through the perforations 35 of the ventilator tube 31 and outwardly through the conduit 34. vThis boiler provides a maximum amount of exposed heatlng surface,.and comparatively small in 'size. ,This boiler may beadapted to a 'greatvariety of purposeswhere small and compact boilers are necessarily employed for Y partlcular uses.

Having thus described-my inve'ntiomwhat I claim as new, and desire to secure by Letters-Patent is: 1

1. A steam boiler comprising; an inner boilershell forminga fire box, an outer boiler shell forming an annular-water space, a. boiler-jacket forming an outer heating space, water tubes inserted through the annular 'waterspace and projecting into the fire box and into the heating space,flues in serted through the boiler shells to conduct heatfromithe' fire box tothe outer heating space, a'central' water reservoir disposed through the fire box, and..a ventilator tube centrally disposed in .the boiler and provided with perforations, a removable plug mounted in the ventilator tube to render accessible. the boiler parts for inspection.

2. A steam'boiler comprising; an inner boiler shell forming a fire box, an outer 7 a boiler jacket forming an outer heating space, water tubes inserted through the annular waterspace and projecting into the fire box and. into the heating'space, flues inserted through the boiler shells to conduct heat from the fire box to the outer heating space, a central water reservoir. disposed through the fire box, a ventilator tube centrally disposed in the boiler and provided with perforations, aremovable plug mounted in the ventilator tube to render accessible the boiler parts for inspectiom'and a heat conducting: outlet conduit connecting with a the ventilator tube. :thew'vater chamber. These blow-out pipes 3. A steam boiler comprising; an inner boiler shellforming a fire box, an outerboiler shell forming an'annular water space,

: -.serted" throu=gh 'the 'boiler shells to conduct a be'iler'jacket forming an outer-{heating space, water tubes inserted through'the anheat from the fire box to the outer heating space, a central water reservoir disposed through the fire box, a ventilator tube centrally disposed in the boiler and provided with perforations, a removable plug mounted in the ventilator tube to render accessible the boiler parts for inspection, a heat conducting outlet conduit connecting with the ventilator tube, and damper control mounted in the heat outlet conduit.

4. A steam boiler comprising; an inner boiler shell comprising a fire box, an outer boiler shell concentrically arranged with the inner boiler shell to form an annular water space between the boiler shells, a plurality of water tubes radially disposed through the concentric boiler shells with the inner end of the water tubes positioned within the fire box, a boiler jacket concentrically arranged with the aforesaid boiler shells to form an outer heating space into which the outer end of the radial water tubes project, a central water reservoir, a water feed pipe, a fuel feed pipe, and a ventilating means.

JAMES P. PERRY. 

